DVD format: Region 0 for use in all regions. This virtuoso performer's systematic approach shows how important tunings like open G, D and C, DADGAD and suspended 4th modal tunings relate to one another and to standard tuning. Covers the chord forms available for each and how various tunings have been used by popular composers from the 19th century through the rock artists of today. more...Music is in TAB and standard notation. DVD running time: 59 minutes.